<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title>js操作DOM树</title>
		<script>
			document.title="js针不戳"; //动态修改html标签值
			//alert(document.title);
			console.log(document.title);
		</script>
	</head>
	
	<body>
		
	</body>
</html>
